Yes I will use the carbon fiber rod on the one you sent me. I was noticing it is drilled more in straight lines. Did you put rod in every hole? This is the effect I tried to get on the second wheel I repaired with the helicoil. The second wheel I used, I put pins in the wheel in curved lines the same shape as the veins on the original impeller. So it has a pin in every other hole. It allowed me to put pins on every row all the way to the outer row! Alot less drag and still ultra fine bubbles. The pump is running pretty warm. Hot to the touch. How are you measuring the temp on the pump?